MG2+ Lewis Structure : Drawings, Hybridization, Shape, Charges,Pairs

In this article Mg²⁺ ion , its lewis structure, shape, angle, and other facts are discussed.

Magnesium ion or Mg²⁺ is a magnesium cation, divalent metal cation and a monoatomic dication. It find various application in several fields especially in medical field.

how to draw MG2+ lewis structure

The Lewis structure of a molecule helps to understand the electronic distribution in a bond formation of a molecule. To draw the lewis structure of a molecule, valence electrons are considered. All other electrons are well protected from chemical bond formation. The electrons denoted as dots in lewis structure called lewis symbols.

Mg²⁺ or Magnesium ion is formed by the loss of two electrons from the Mg atom. The electronic configuration of Mg can be shown as 1s² 2s² 2p⁶ 3s² and that of Mg²⁺ is found to be 1s² 2s² 2p⁶. The electron distribution among various shells of Mg and Mg²⁺ is given below.

	K	L	M	N
Mg	2	8	2
Mg²⁺	2	8

Electron distribution among shells

In Mg²⁺ only 10 electrons are present in K and L shell respectively. So the lewis structure of Mg2+ ion will be the following one.

MG2+ lewis structure resonance

Resonance structure is two or more way of representation of lewis structure of the given molecule. Since Mg²⁺ is an ion it has only one resonance structure and it is same as its lewis structure.

MG2+ lewis structure shape

Mg2+ has no shape eventhough its structure is same as that of its lewis structure.

MG2+ lewis structure formal charge

Formal charge is the imaginary charge allotted to an atom when all its valence electrons are perfectly shared in a chemical bond.

Formal charge of a molecule can be found out by an equation

Formal charge of an atom = No. of valence electrons – No. of dots or electrons – No.of bonds formed.

Mg²⁺ is not a molecule and its an ion. It doesn’t take part in any chemical bond. So the Mg²⁺ ion doesn’t have any formal charge but there is a net charge present to this ion.

MG2+ lewis structure angle

Bond angle is the angle formed between the 3 bonds when different or same atoms combine together to form a compound. Here in the case of Mg²⁺there is no bond formation with other atom so the concept of bond angle cannot seen here. Therefore Mg²⁺ ion doesn’t have any bond angle.

MG2+ lewis structure octet rule

According to Octet Rule, the number of valence electrons or the electrons present on the outermost shell must be 8. If there are 8 electrons are present among the outermost shell then its octet is fulfilled.

In the case of Mg²⁺ ion its octet is fulfilled. Because the when two electrons from Mg is lost then the outer most shell of Mg²⁺ is L shell and it has 8 electrons present. So Mg²⁺ ion obeys the octet rule.

MG2+ lewis structure lone pairs

Lone pair of electrons are the electrons that doesn’t took part in any chemical reaction. The lone pair of electron in any molecule is given as .

Lone pair of electron in any atom = (Valence electrons – No. of electrons shared by the atom) /2

There is no lone pair of electron in Magnesium ion.

MG2+ valence electrons

Valence electrons are the electrons present in the outermost shell of any atom or ion that can take part in any chemical reaction. A molecule or an atom attain valency by losing or gaining electrons from its outer most shell to attain noble gas configuration.

The electronic configuration of Mg²⁺ ( 2, 8). Since Mg²⁺ is formed by the loss of 2 electrons from Mg. The number of valence electrons present to Mg²⁺ is zero and the total number of electrons present to Mg²⁺ ion will be 10.

MG2+ hybridization

Hybridisation is a concept that actually we apply among covalent bonded compounds. Since Mg²⁺ is an ionic compound. So the concept of hybridisation doesn’t work here.

MG2+ uses

Magnesium ions are required by several enzymes to perform their function.Magnesium ions are vital for the transfer, storage, and utilisation of energy in human metabolic activities. Mg²⁺ ion regulates and catalyses most of the enzymatic functions in mammals.

The energy storage of our cell ATP need Mg2+ ion to combine with it to perform its biological function. Magnesium containing compounds are also found importance in laxatives, antacids. Magnesium compounds are also used for certain health treatment like stabilising abnormal nerve excitation.

Is MG2+ ionic or covalent

Mg²⁺ is an ionic compound. Magnesium ion or Mg²⁺ is a positively charged cation.

Is mg2 stable?

Mg²⁺ is a stable compound. Magnesium ion is formed by the loss of two electrons from the Mg. Then its electronic configuration is ( 2, 8). Since both the shells are completely filled and obeying octet rule Mg²⁺ ion is a stable ion.

Read more about Americium Electron Configuration.

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Aparna Dev

Hi… I am Aparna Dev, a chemistry Postgraduate with a good understanding of chemistry concepts. I am working in Kerala Minerals and Metals Limited Kollam with experience in the development of electrocatalysts as a part of post graduate thesis.
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